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研究了合金化对大块金属玻璃和高熵合金的组织和性能的影响.结果表明Nb元素能有效改善W纤维/Zr基大块非晶复合材料的界面结合状态,从而改善材料的力学性能;稀土Y元素大的原子半径,使合金形成的晶体产生附加的晶格畸变能,从而降低晶体的稳定性,进而使得合金玻璃形成能力也相应提高,所产生晶格畸变能的大小与形成晶体的致密度有关;Mg基大块非晶合金可以通过合金化生成长周期相韧化的复合材料,从而具有优异的塑性变形能力和比强度;高熵合金通过适当合金化手段能够形成以无序固溶体为主的组织,并具有不弱于大块非晶合金的室温力学性能.
The effects of alloying on the microstructure and properties of bulk metallic glasses and high-entropy alloys were investigated. The results show that Nb can effectively improve the interfacial bonding between W fibers and Zr-based bulk amorphous composites and improve the mechanical properties. The large atomic radius of the rare earth element Y makes the crystal formed by the alloy generate additional lattice distortion energy, so as to reduce the stability of the crystal and further increase the glass forming ability of the alloy. The magnitude of the lattice distortion energy produced is similar to that of the crystalline Density of Mg-based bulk amorphous alloy can be generated by alloying long-period phase toughened composite material, which has excellent plastic deformation capacity and specific strength; high-entropy alloy by proper means of alloying to form a disordered solid solution Dominated by the organization, and not weaker than bulk amorphous alloy room temperature mechanical properties.